Steward Mardil made all months of equal length (30 days) and arranged the two days gained such symmetrically to the other holidays and also inserted two leap-days in T.A.2059. However this still left a minor deficit of about 8 hours[1] in advance. It is possible that the leap-day of 2060 was dropped in consequence.

In 2360 Steward Hador added 1 day to that year though this deficiency had not quite reached that amount being now a delay of only 0.3 day[1]. By 3020 the deficit had once again accumulated to 0.77 days[2].

The Stewards' Reckoning was eventually adoped by most speakers of Westron such as the Dwarves and even the Elves (who maintained their former traditions only for ritual purposes).